-- @testpoint: opengauss关键字ordinality(非保留)，作为函数名,部分测试点合理报错

--关键字不带引号-成功
drop function if exists ordinality;
create function ordinality(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
--关键字带双引号-成功
drop function if exists "ordinality";
create function "ordinality"(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
--关键字带单引号-合理报错
drop function if exists 'ordinality';
create function 'ordinality'(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
--关键字带反引号-合理报错
drop function if exists `ordinality`;
create function `ordinality`(i integer)
returns integer
as $$
begin
    return i+1;
end;
$$ language plpgsql;
/
--清理环境
drop function if exists ordinality(integer);
drop function if exists "ordinality"(integer);